diff --git a/highlight/highlight.v b/highlight/highlight.v
index d47e49a1..330b5731 100644
--- a/highlight/highlight.v
+++ b/highlight/highlight.v
@@ -23,7 +23,7 @@ pub fn highlight_text(st string, file_path string, commit bool) (string, int, in
 	mut res := []u8{cap: text.len}
 	mut lines := 0
 	mut sloc := 0
-	mut ss := byte(` `)
+	mut ss := u8(` `)
 	lc := lang.line_comments
 	mut mlc := ''
 	mut mlc_end := ''
diff --git a/src/feed_service.v b/src/feed_service.v
index 4a5b78a4..bbb2195b 100644
--- a/src/feed_service.v
+++ b/src/feed_service.v
@@ -11,10 +11,13 @@ fn (mut app App) build_user_feed_as_page(user_id int, offset int) []FeedItem {
 	repo_ids := app.find_watching_repo_ids(user_id)
 	where_repo_ids := repo_ids.map(it.str()).join(', ')
 
-	commits, _ := app.db.exec('
+	commits:= app.db.exec('
 		select author, hash, created_at, repo_id, branch_id, message from `Commit`
 			where repo_id in (${where_repo_ids}) order by created_at desc
-			limit ${feed_items_per_page} offset ${offset}')
+			limit ${feed_items_per_page} offset ${offset}') or {
+		return feed
+	}
+
 	mut item_id := 0
 
 	for commit in commits {
@@ -51,7 +54,9 @@ fn (mut app App) get_feed_items_count(user_id int) int {
 	repo_ids := app.find_watching_repo_ids(user_id)
 	where_repo_ids := repo_ids.map(it.str()).join(', ')
 
-	count_result, _ := app.db.exec('select count(id) from `Commit` where repo_id in (${where_repo_ids})')
+	count_result:= app.db.exec('select count(id) from `Commit` where repo_id in (${where_repo_ids})') or {
+		return 0
+	}
 
 	return count_result.first().vals.first().int()
 }
diff --git a/src/repo_service.v b/src/repo_service.v
index 3c33f426..87960069 100644
--- a/src/repo_service.v
+++ b/src/repo_service.v
@@ -96,10 +96,12 @@ fn (mut app App) find_user_public_repos(user_id int) []Repo {
 }
 
 fn (app App) search_public_repos(query string) []Repo {
-	repo_rows, _ := app.db.exec('select id, name, user_id, description, stars_count from `Repo` where is_public is true and name like "%${query}%"')
-
 	mut repos := []Repo{}
 
+	repo_rows:= app.db.exec('select id, name, user_id, description, stars_count from `Repo` where is_public is true and name like "%${query}%"') or {
+		return repos
+	}
+
 	for row in repo_rows {
 		user_id := row.vals[2].int()
 		user := app.get_user_by_id(user_id) or { User{} }
@@ -216,7 +218,7 @@ fn (mut app App) user_has_repo(user_id int, repo_name string) bool {
 fn (mut app App) update_repo_from_fs(mut repo Repo) ! {
 	repo_id := repo.id
 
-	app.db.exec('BEGIN TRANSACTION')
+	app.db.exec('BEGIN TRANSACTION')!
 
 	repo.analyse_lang(app)!
 
@@ -242,7 +244,7 @@ fn (mut app App) update_repo_from_fs(mut repo Repo) ! {
 	}
 
 	app.save_repo(repo)!
-	app.db.exec('END TRANSACTION')
+	app.db.exec('END TRANSACTION')!
 	app.info('Repo updated')
 }
 
@@ -291,7 +293,7 @@ fn (mut app App) update_repo_from_remote(mut repo Repo) ! {
 	repo.git('fetch --all')
 	repo.git('pull --all')
 
-	app.db.exec('BEGIN TRANSACTION')
+	app.db.exec('BEGIN TRANSACTION')!
 
 	repo.analyse_lang(app)!
 
@@ -317,7 +319,7 @@ fn (mut app App) update_repo_from_remote(mut repo Repo) ! {
 	repo.branches_count = app.get_count_repo_branches(repo_id)
 
 	app.save_repo(repo)!
-	app.db.exec('END TRANSACTION')
+	app.db.exec('END TRANSACTION')!
 	app.info('Repo updated')
 }
 
@@ -580,7 +582,7 @@ fn (mut app App) cache_repository_items(mut r Repo, branch string, path string)
 	mut dirs := []File{} // dirs first
 	mut files := []File{}
 
-	app.db.exec('BEGIN TRANSACTION')
+	app.db.exec('BEGIN TRANSACTION')!
 
 	for item_info in item_info_lines {
 		is_item_info_empty := validation.is_string_empty(item_info)
@@ -608,7 +610,7 @@ fn (mut app App) cache_repository_items(mut r Repo, branch string, path string)
 		app.add_file(file)!
 	}
 
-	app.db.exec('END TRANSACTION')
+	app.db.exec('END TRANSACTION')!
 
 	return dirs
 }
@@ -727,7 +729,7 @@ fn (mut app App) update_repo_primary_branch(repo_id int, branch string) ! {
 }
 
 fn (mut r Repo) clone() {
-	clone_result := os.execute('git clone --bare "${r.clone_url}" ${r.git_dir}')
+	clone_result := os.execute('git clone --bare "${r.clone_url}.git" ${r.git_dir}')
 	close_exit_code := clone_result.exit_code
 
 	if close_exit_code != 0 {
diff --git a/src/user_service.v b/src/user_service.v
index 0f216116..170f1311 100644
--- a/src/user_service.v
+++ b/src/user_service.v
@@ -250,10 +250,12 @@ pub fn (mut app App) get_all_registered_user_count() int {
 }
 
 fn (app App) search_users(query string) []User {
-	repo_rows, _ := app.db.exec('select id, full_name, username, avatar from `User` where is_blocked is false and (username like "%${query}%" or full_name like "%${query}%")')
-
 	mut users := []User{}
 
+	repo_rows:= app.db.exec('select id, full_name, username, avatar from `User` where is_blocked is false and (username like "%${query}%" or full_name like "%${query}%")') or {
+		return users
+	}
+
 	for row in repo_rows {
 		users << User{
 			id: row.vals[0].int()